So next weekend I'm getting my 2nd dyno done. Only difference is the first time I was bone stock back in March and this time it'll have a DUDMD tune and a Magnaflow resonator and 14816 muffler.
What gear is best to do the dyno in? 4th or 5th?
1st time pulled 245HP to the wheels on a Dynojet. For some odd reason the torque numbers didn't show.
I'll post the numbers next Saturday.
Thanks
2002 BMW Titanium Silver 540i/6-speed Sport - ZHP Shift Knob - M5 Clutch/TTV Racing 15.6lb Flywheel - M60 Intake Manifold - N62 84mm TB - Dinan Intake Tube - 4" MAF Tube - DUDMD Tune - Magnaflow Resonator - Eibach 18mm Rear Sway Bar - Powerflex Front Sway Bar Bushings - CDV Delete - UUC SS Brake Lines - Koni Yellow Shocks/Struts - Eibach Springs - Zionsville Radiator & FDM
According to the 420g gear ratios, 5th is 1:1, which is ideally what you want to dyno with. In theory, at least.
1995 525i 5-speed - Thread
2002 BMW Titanium Silver 540i/6-speed Sport - ZHP Shift Knob - M5 Clutch/TTV Racing 15.6lb Flywheel - M60 Intake Manifold - N62 84mm TB - Dinan Intake Tube - 4" MAF Tube - DUDMD Tune - Magnaflow Resonator - Eibach 18mm Rear Sway Bar - Powerflex Front Sway Bar Bushings - CDV Delete - UUC SS Brake Lines - Koni Yellow Shocks/Struts - Eibach Springs - Zionsville Radiator & FDM
If you are doing more than one pull do it in 4th and then in 5th so you have a good comparison to your last 4th gear pull.
I'm guessing your have about another 12HP gain with the DUDMD tune.
2002 BMW Titanium Silver 540i/6-speed Sport - ZHP Shift Knob - M5 Clutch/TTV Racing 15.6lb Flywheel - M60 Intake Manifold - N62 84mm TB - Dinan Intake Tube - 4" MAF Tube - DUDMD Tune - Magnaflow Resonator - Eibach 18mm Rear Sway Bar - Powerflex Front Sway Bar Bushings - CDV Delete - UUC SS Brake Lines - Koni Yellow Shocks/Struts - Eibach Springs - Zionsville Radiator & FDM
4th gear has 1:1 ratio on 5hp24 transmission, not the 5th gear.
1995 525i 5-speed - Thread
2002 BMW Titanium Silver 540i/6-speed Sport - ZHP Shift Knob - M5 Clutch/TTV Racing 15.6lb Flywheel - M60 Intake Manifold - N62 84mm TB - Dinan Intake Tube - 4" MAF Tube - DUDMD Tune - Magnaflow Resonator - Eibach 18mm Rear Sway Bar - Powerflex Front Sway Bar Bushings - CDV Delete - UUC SS Brake Lines - Koni Yellow Shocks/Struts - Eibach Springs - Zionsville Radiator & FDM
stock you should be making about 310-315 at the crank , mine is a 97 with a few bolt ons and a tune as well as trans chip and I’m making a little more than 282 hp to the wheel which is around what they rated these cars to make at the motor. Definitely a very under rated vehicle by BMW!
Electric Fan conversion, 840Ci thermostat, Dinan style CAI,de-screened MAF, Dinan transmission chip, 255lph LS1 fuel pump, drilled slotted rotors, 3.15 differential, Bel rx65 radar (hard-wired). Hemi Killer!
2002 BMW Titanium Silver 540i/6-speed Sport - ZHP Shift Knob - M5 Clutch/TTV Racing 15.6lb Flywheel - M60 Intake Manifold - N62 84mm TB - Dinan Intake Tube - 4" MAF Tube - DUDMD Tune - Magnaflow Resonator - Eibach 18mm Rear Sway Bar - Powerflex Front Sway Bar Bushings - CDV Delete - UUC SS Brake Lines - Koni Yellow Shocks/Struts - Eibach Springs - Zionsville Radiator & FDM
cai and dinan tune gives +20, i also have a clutch fan delete(electric fan), underdrive pulleys, cat delete, 255lph fuel pump, lower temp thermostat and 3.15 gears. Remember my car is a 97, so it basically has Dinan M60 Intake manifold, bigger throttle body and bigger MAF sensor, as well as better flowing exhaust manifolds. The Charger R/T Daytona hemi i beat weighed in 3900lbs and made 350 hp at the crank, i weigh about 120lbs less than him and beat him by 2 cars all the way from a traffic light to the time we got to 100.
Electric Fan conversion, 840Ci thermostat, Dinan style CAI,de-screened MAF, Dinan transmission chip, 255lph LS1 fuel pump, drilled slotted rotors, 3.15 differential, Bel rx65 radar (hard-wired). Hemi Killer!
As they say no pic it didn't happen.
Same, no dyno sheet....didn't happen.
Get your aux fan fixed?
Another question before the dyno this weekend. Last time we didn't get a torque reading. I'm guessing the shop had an issue getting the RPM signal. What's the best way to get this reading when on the dyno? What should we be connecting to?
- - - Updated - - -
Aux fan still runs on high, but turns out the new clutch fan was a Behr unit and did fine on the "newspaper test."
2002 BMW Titanium Silver 540i/6-speed Sport - ZHP Shift Knob - M5 Clutch/TTV Racing 15.6lb Flywheel - M60 Intake Manifold - N62 84mm TB - Dinan Intake Tube - 4" MAF Tube - DUDMD Tune - Magnaflow Resonator - Eibach 18mm Rear Sway Bar - Powerflex Front Sway Bar Bushings - CDV Delete - UUC SS Brake Lines - Koni Yellow Shocks/Struts - Eibach Springs - Zionsville Radiator & FDM
They usually clip or connect their cable to one of your coil wires.
Some dynos have a speed cap iirc. 5th gear at redline is up there, so they may need to do in 4th.
98 540i 6, 525 whp, 120 mph 1/4, V3 Si S/C'er @16 psi, W/A I/C, Water/Meth, Supersprint Headers, HJS Cats, 3" Custom Exhaust, UUC Twin Disc, Wavetrac LSD, GC Coil Overs, Monoball TA, AEM FP, Aeromotive FPR, AEM Failsafe AFR/Boost, Style 65's w/275's, M5 Steering Box, Eibach Sways, M3 Shifter, Evans Coolant, 85 Deg Stat, PWM Fan, 10" Subs, B.A. speakers, Grom Aux/BT, Still Rolling as my DD!
Today is the day for getting the tune done. Dyno on Saturday.
2002 BMW Titanium Silver 540i/6-speed Sport - ZHP Shift Knob - M5 Clutch/TTV Racing 15.6lb Flywheel - M60 Intake Manifold - N62 84mm TB - Dinan Intake Tube - 4" MAF Tube - DUDMD Tune - Magnaflow Resonator - Eibach 18mm Rear Sway Bar - Powerflex Front Sway Bar Bushings - CDV Delete - UUC SS Brake Lines - Koni Yellow Shocks/Struts - Eibach Springs - Zionsville Radiator & FDM
Initial thoughts on the tune are great. Not going to say the car is blindingly faster. What is amazing though is the drivability, greater throttle response, the power is under the curve, partial throttle power is improved. This is definitely worth it. Oh and the 6500RPM redline is nice as well.
2002 BMW Titanium Silver 540i/6-speed Sport - ZHP Shift Knob - M5 Clutch/TTV Racing 15.6lb Flywheel - M60 Intake Manifold - N62 84mm TB - Dinan Intake Tube - 4" MAF Tube - DUDMD Tune - Magnaflow Resonator - Eibach 18mm Rear Sway Bar - Powerflex Front Sway Bar Bushings - CDV Delete - UUC SS Brake Lines - Koni Yellow Shocks/Struts - Eibach Springs - Zionsville Radiator & FDM
Bookmarks